/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataInterfaceSkeletalMesh.h
int32 CalculateLODIndexAndSamplingRegions ( [USkeletalMesh](API\Runtime\Engine\Engine\USkeletalMesh) * InMesh, [TArray](API\Runtime\Core\Containers\TArray)< int32 > & OutSamplingRegionIndices, bool & OutAllRegionsAreAreaWeighting ) const